Endless traveling water screen



Aug. 30, 1932. G, BLEYER 1,874,736

ENDLESS TRAVELING WATER SCREEN Filed March 15, 1930 3 Sheets-Sheet l illwmwgwx www l.. G. BLEYER 1,874,736

ENDLESS TRAVELING WATER SCREEN Filed March l5, 1950 3 Sheets-Sheet 2Aug. 30, 1932-.

Aug. 30, 1932. L. G. BLEYER ENDLESS TRAVELING WATER SCREEN Filed March15, 1930 5 Sheets-Sheet 3 :NvENToR Lloyd Gfleye;

ATTORNEYS Patented Aug. 30, 1932 LLOYD e. BLEYER, or MILWAUKEE,WIscoNsiN,` AssiGNon 'roicHA'INBErT COMPANY, OEWMILWAUKEE, WISCONSIN, AcoRPoaATroN or -WrscoNsIN Apiication, ,meamarch .15, ileso'.Y- serieun1436312," I"

This invention relates to endless traveling It is,'therefore, 'theprimary object ofthe Water screens and hasl for one of its objects toimprove the construction of'priordevices I of -this character wherebythey may be renf deredmore eiicient-inuseand less expensive inAmaintenance.

The invention relates more particularly to endless traveling Waterscreens of the type which comprises a pair of laterally spaced endlesschains,` which pass around vertically spaced sprockets, each link of'which chains has secured to it vaV screen basket through which theWater 'passes in order that the refuse carried therebymay be separatedout upon the screen surface. It has been found in the actual operationofl such screens, especially Where the Water contains relatively largeamounts'of harsh abrasive substances, g l such as foundry' slag, coalcinders and the like that excessive Wear occurs upon the pintle rolls ofthe chains, necessitating frequent removal and renewal of these rolls.`1nasrnuch as these pintle lrolls are usually mounted intermediate thespaced `,side bars of thechain links and since the screen baskets areIsecured to said side bars, Vit has hereto-4 fore been necessary todisconnect the chain bars from the, baskets and to dismantle the chainin order to remove Worn pintle rolls.

Traveling Water screens of this character areusually provided, inaddition to the head and tail 'sprockets aroundwhich the lchains pass,with intermediate vertical'guide 'members with which thepintle rollsengage during the vertical up-run of the screen and it isr the travel ofthe rolls along these vertical guidesl which results in the greatestWear o n the said rolls, since they do not ordinarily contact with theboot sprocket Wheels.' VTherefore, iii provision is made toeliminatethegengagement of the pintle rolls with the vertical intermediate guidemembers during the uprun of the screen, While at the same time providingsuitable support for the screen since the Water pressure is usuallysuilicient to make such support necessary or desirablethe major portionof the Wear which now Y occurs upon the pintle rolls may be eliminated;

i tionalvievv through the baskets and chains throughout thisup-runpresent invention to vprovide means which,

Awhile Vfurnishing the necessary lateral support vforthe chains landbaskets on the up-run of the screen, will relieve -therchainpintle 55rolls from their engagementwith the vertical lguidesV and therebyeliminate, -toa great extent, the Wearwhich nowoccurs thereon. A furtherobject ofthe invention is to provide means rfor accomplishing the abovedesirableresult'comprising additional rollers or members which mayengageV the vertical guides 'to furnish thelnecessary yhorizontalsupport, whichl rollers or members fare so mounted 'as to be readilyaccessibletofthe' end that they may be removed and replaced `Withoutthef necessity Y of 'dismantling' the chainjand disconnecting the screenbaskets. With the aboveand other objects in view Which will appear` asthe description' pro'` ceeds,`theinvention consists 'in the noveldetails of construction and combinations ot parts more fullyhereinafterv described and particularly pointed out in the vappendedclaims.. L i V Referring `to the accompanying drawings forming'a part ofthis specification in {Which like reference characters'designatelikeparts,

l Figurel I is aside elevational View, partly broken away, of a- Wellknownform of endless traveling Water screen embodying `the presentinvention; f e,

VFigure 2'is an:enlarged-:transverse sec# l l perun of the screen shownin Figurel; i A v Figure 3 is an fenlarged `'vertical sectionalelevational view throughy the articulating joint of Aa: ypair of screenbaskets; ,l

Figure i'is'an elevationalV View of the parts shown in FigureB, as seenfromthe right of thesaid-ligure; I* j `V Figure' 5 is a horizontalsectional ,-view" `taken approximately on the planev indicated l shownin'Figure 6 `as seen from the right of Y with'the rolls to behereinafter described, ther constituting the supports `for the screenbaskets 18. The frame 15 comprises in part' the vertically extendingZebars19, one iiange 20 of-which is receivablein grooved socket members21 which areembedded in the side walls 22 of the ,water conduit. Thewebs 23 of the Z-bars19 Vextend parallelto the Vfaces of the walls 22and the forwardA flanges 24 of the said bars 19 extendinwardly to formYtrash seals withy the fabricatedside members 25 of the .screen baskets,as isvwell known in the art. Boot or tailsprockets 26 aresuitablyjournalled upon the frame 15 adjacent the bottom of the 'waterconduit and the chains 17 pass around thesersprockets as will beclearlyzunderstood.l

Intermediate the sprocketsgl there Y isprovided -the verticallyextending: angles or guides 27 whichfconstitute `in con]unction meansfor taking thehorizontal thrustimposed upon the screen by thev force ofvthe rwater as it flows therethrough. Theehains 17 are provided withpintle rolls 2 8'fwh9h are journalledupon bushings 34 surrounding thechainrpins29 and infprevious constructionsthese pintle rolls vhave,engagedwith vtheV verticalfguides27 during the up-runof the chain tofurnishthe necessary horizontal support for thev screens. These pintlerolls Y engageV the teethO of the headsprockets 16 whereby motion may beimparted to the chains and screens, but ordinarily theboot sprockets 26are so formed or cut away as-at 31 that the said rolls do not contactthere# with.

As above stated, the` pintle rolls V28 of the chains 17 are ordinarilymounted intermediate the side bars 32of the said chains and when wearoccurs upon such rolls obviously thechainlpins 29 must'be withdrawn andthe chains andthe baskets disconnected inv order that such'rollsmay beremoved and.v renewed.` '.Thisis a ratherdiflicultfand expensiveprocedure and in rorder to eliminate the necessity therefor, lhave-provided .supplemental rolls83, mounted upon short readilyremovable'stub shafts 37 which are journalle'd in the side bars 32 'ofthe chains. The

Y said supplemental rolls are positioned .intermediate the side barsadjacent to-andin alfinementwith the pintle rolls 28, but-they are atvthe same timevreadily removable and renewable withoutidi'smantling thechain, it-being only necessaryto knock out the stub shafts 37 witho-utin any wise disturbing the pintle rolls 28 orV the connecting chain pins29.

- The form of invention shown in Figures 6, Y

7 and 8,inclusive,is closely analagous to that shown.A in Figures l-to 5exceptthatthe supplemental .rolls 33V and their supporting stubV shafts37 are located substantially midway s betweenV the ends of the'chainylinks instead "of 'being immediatelyadjacent ay the para@ rolls 28.Thesame'access'ibility and ease of removal andY replacement is stillretained,

Y however. It'willmbe noted that the ysupplemental rolls 33` are ofgreater diameter than the chain pintle rolls,'since the supplementalVrolls and pintlev rolls are in alinementgand if the supplemental ro-llswere of the same diamf eteras the pintle rolls, they would failtorelieve `the pintle rollsV from the vertialguide members 27. y Theperipheries ofthe sprockets y16 and' 2-6 may be cut away or recessed, as

indicated at 16 and 26 (respectively, Figure 1, to laccommodate theselarger rolls. It is obvious that those skilled inthe art may varythedetails of y'construction aswell as thevprecise Varrangemrent ofparts without departing from the spirit of the invention and it is notwished to be limited to the above v disclosure except as may befrequiredby the claims. y ,Y What is claimed is:

f 1. In;v an endless traveling-water screenQla basket supporting' chain;a guiding sprocket therefor; anV additional guidingl element` adjacentsaid sprocket ,sprocket engaging pin-` tle rolls carried/by saidchain; and additional rolls mounted-in longitudinal alinementwith,

said pintle rolls'for engaging-said additional guiding element to:kprevent excessive wear upon said. pintle rolls, said additional rollsbeing removable and replaceablewithout' dismantlingQsaidchain; i .Y

2*. In any endless traveling water screen, a basket supporting-chain; aguiding sprocket therefor; an additional guiding element ad- `los jacentsaid sprocket; sprocketengaging pinn Y,

tlejrolls carriedby said chain; and additional rolls mounted in'longitudinal alinement with sa-id` pintle.- rolls'and substantially1midway vbetween adjacent pintle rolls, for. engaging saidadditionalgguiding `element to prevent excessive wear upon said 1vpintleroll`s,said

additional rolls Vbeingremovable and replace- Y able without dismantlingsaid chain. e Y `In testimony-whereof I aiiix my signature.

.Y 1 LLOYD e. BLEYER. Y

